Toshiba TOSVERT VF-AS3, Инструкция по эксплуатации

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E6582062 
10. Selection and installation of peripheral devices
10-10
9
10
This inverter provides external options shown in the next figure.
Functions, purposes, notes, etc. of individual external option are explained next.
External options are shown in [10. 3. 9].
10. 3. 1 Input AC reactor, (DC reactor)
Input AC reactor is used for improving input power factor on the inverter power side (primary side),
reducing harmonics or restriction of surge voltage.
It is also installed when the power supply capacity is 500 kVA or more and is 10 times or more of the
inverter capacity, and when devices that cause distorted waves (a device with thyristor, etc.) and a large
capacity inverter is connected on the same power distribution line. Install an input AC reactor between
the power supply and the inverter (primary side).
A DC reactor is a reactor to connect with the DC terminal, and used for improving input power factor
and reducing harmonics. It has better power factor improvement effect than an input AC reactor. When
a facility applying the inverter requires high reliability, it is recommended to use with an input AC reactor
that has surge voltage restriction effect.
However, the frame size A1 to A6 of the inverter has a built-in DC reactor as standard, and the frame
size A7 and A8 attached with a DC reactor, no option is available.
10. 3 External options
Type
Effect
Power factor
improvement
Harmonics
reduction
Surge voltage
restriction
Input AC reactor Enabled Enabled Enabled
DC reactor Enabled (large) Enabled (large) Disabled
M
Power supply
Molded-case
circuit breaker
Electromagnetic
contactor
Motor-end surge
voltage suppression
filter (480 V class only)
Motor
Braking unit
(Frame sizes A6 or A8)
DC reactor
(Frame A7 and A8, packed with the inverter)
Braking resistor
Input AC
reactor ACL
MCCB
Earth leakage
circuit breaker
or
ELCB
MC
VF-AS3
Optional control
power supply unit